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дежурил

was on duty

dʲ ɪ ʐ u rʲ ɪ ɫ → дежурить
дежур be on duty + ил masculine singular past tense
verb · masculine singular · past indicative Rare #32,944
was on duty often means being assigned to watch over something (e.g., a building, a class) or to be available to help (on call)
RU: Вчера я дежурил в больнице всю ночь.
EN: Yesterday I was on duty at the hospital all night.
Conjugation of дежурить
Indicative past
дежурил

Том дежурил.

Tom was on duty.

В ту ночь я дежурил.

I was on duty that night.

Он вчера дежурил.

He was on duty yesterday.

— Маленькая Вера (1988)

Том тогда дежурил.

Tom was on duty at the time.

Ты же вчера дежурил?

You were on duty yesterday, weren't you?

— Посредник (2022)

Том тогда не дежурил.

Tom wasn't on duty then.

Sounds similar to

дежурит dʲ ɪ ʐ u rʲ ɪ t